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ITU-T G.9991 (provisionally known as G.vlc) is a standard developed by ITU-T for indoor line-of-sight optical networking.

G.9991 was approved in March 2019. It is used by Signify (formerly Philips Lighting) as the basis for their optical communication products.

References

1. Hollister, Sean (2023-07-15). "Infrared may no longer be a punchline, as IEEE approves 9.6Gbps wireless light". The Verge. Retrieved 2023-07-17.
2. Eggmayr, Bernadette (2020-01-01). "ITU-T G.9991 (aka G.VLC) Activities in 2020". ELIoT. Retrieved 2023-07-17.
3. "ITU-T Recommendation database". ITU. Retrieved 2023-07-17.
4. "Why Signify builds 'LiFi' products to ITU standards". ITU Hub. 2020-09-04. Retrieved 2023-07-17.

See also

• IEEE 802.11bb, an IEEE standard for line-of-sight optical networking approved in 2023
• IrDA, an early low-speed infrared communication protocol

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